Color

#187fbf

#187fbf
hex#187fbf
rgbrgb(24, 127, 191)
hslhsl(203, 78%, 42%)
oklchoklch(0.573 0.131 243.2)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1913

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#bf5818

#18bfab · #182bbf

#bf187f · #7fbf18

Split-complementary

Open in tool →

#bf182b · #bfab18

#ab18bf · #bf5818 · #2bbf18

Contrast

#187fbf as textRatioAAAA largeAAAFix
Aaon white
4.35:1failpassfail
  • AA: use #177cba as the text (4.54:1)
  • AAA: use #115d8d as the text (7.06:1)
  • AA: or shift the background to #0a0a0a (4.55:1)
Aaon black
4.83:1passpassfail
  • AAA: use #2a9de5 as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #187fbf as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#187fbf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #187fbf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #187fbf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/187fbf-9cb0c4-df4e5d-1f222d-e9f1f0?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md